ajcallea

I have a 1989 jeep Cherokee with the 4.0 6l engine and I need to replace my CPS, I have heard of many different ways to replace it but what is the easiest way to replace it?

scottmphoto

You need about two feet of extensios for your ratchet and a uni-socket (wobble socket). That will allow you to easily reach the two bolts that hold the CPS on. I read all the horror stories but the first time I did it, it took me less than 15 minutes and was actually pretty easy.

RTorrez1

Climb under on the drivers side with a at least 2 feet of socket extensions and a swivel. I forgot what size of socket you need. Unbolt it from below. Just make sure not to drop the bolts in to the hole that the cps goes into or you will have to try to fish them out or drop the tranny to get them out. A lot of people say that it's a real hard job to to but it really isn't but it can be time consuming.

PDEM87

If I remember right, the socket size needed is 7/16 or 11mm. Trouble is, my memory could be better!

highmileage

If you feel you need more room you can also loose the tranny mount and lower the nose of the tranny to get a better view. You do not have to remove the bracket completely just loose it from the body.

DFlintstone

I found if you BACK the left front onto a ramp you won't have it in the way, where you need to lay. A stand under the left front frame would be in your way.

If CPS itself is putting out less than .35 Volts AC while it's cranking with a good battery, or the resistance is not 200 ohm's plus/minus 75, hot;

11mm socket > 3 inch extension > universal > long (18-24 inches of extension). Your feet are sticking out under the passenger side, you can reach up past the front drive-line with your left hand to hold the CPS, from the front. Your right hand is on the ratchet way back by the tranny cross member. If you tie a long string on the old, you can use it to haul up the new. Toss that piece of plastic if it's still there, and do not drop the bolts in there! Echlin # CSS980, (from Napa, for 87-90), should be fine, but some prefer to go to Jeep. I wouldn't bother with anything else for that.

If your left forearm is bigger than a quart Mason jar, you might conciser removing the front drive-line. Also You might cut your old CPS wires if they go through a deal on a bell housing bolt, then be sure your new are held somewhere safe.

The second one is REALLY easy!

cruiser54

Your memory serves you well.....

cruiser54

Click on the pink link in my signature and go to post 7 for a helpful trick.

Roler

Unbolting doesn't seem an issue, you will reach it. It's getting the new one up in there I'd reckon might be a fiddle. Mine was replaced in a time that I wasn't doing those things myself yet, so have no experience with this replacement, but I always wondered how you get that CPS back in there, let alone adjust it (position-wise) if needed...

cruiser54

Did you use this to get it started?

Roler

No, but my lawnmower does haha. I bought it, for just being the best product name ever.

freegdr

Having orangutan arms help just reach rignt up and start the bolts by hand.

Roler

Am getting more and more curious to one day see the man behind freegdr hehe

cruiser54

So it really does exist? A real product from Down Under.

freegdr

HeHe ? Im right there the guy in the blue...